Glassware forming machine



July 18, 1933. D. souBu-:R Er AL 1,919,176

GLASSWARE FORMING MACHINE Filed nec. 23. 1929 '7 sheets-sheet 1 L. D. souBlR Er AL 1,919,176

GLAS SWARE FORMING MACHINE July 18, 1933.

Filed Dec. 23, 1929 7 Sheets-Sheet 2 A/sxs' las WMI@ @om July 18, 1933. D. SOUBIER ET AL GLAS SWARE FORMING MACHI NE 4 [off/e '7 Sheets-Sheet 3 July 18, 1933. L. D. soUBlER ET AL 1,919,176

GLASSWARE FORMI NG MACHINE Filed Deo. 23, 1929 7 sheets-sheet 4 fra .s er 4@ af: /an

July 18, 1933- L. D. soUBlER ET AL l 1,919,176

GLASSWARE FORMING MACHINEl July 18, 1933. 1 D. soUBn-:R Er AL 1,919,176

GLASSWARE FORMNG MACHINE Filed Deo. 23, 1929 "I'Sheets-Sheet 6 /ru//e-Jan o/be/z/ u g/@PTM {buik/ny ma/d doses July 18, 1933. D. soUBlER ET AL 1,919,176

GLASSWARE FORMING MACHINE Filed Dec. 23. 1929 7 Sheets-Sheet 7 Patented .lul-y 18, 1933 i UNITED STATES PATENT ori-ica LEONARD D. SOUBIEB AND JESSE H. TBEECE, OF TOLEDO, OHIO, ASSIGNORS TO OWENS- ILLINOIS GLASS COMPANY, OF TOLEDO, OHIO,

A CORPORATION OF OHIO GLASSWARE FORMING MACHINE Application tiled December 23, 1929. Serial No. 416,130.

The present invention relates to improvements in glassware more particularly to that type embodying an annular series of continuously rotating units, each operating independently ofthe others in forming articles of blown glassware.

An object of the present invention is the provision of a machine of the above character in which mold charges are gathered by suction through a bottom outlet opening from a supply body of molten glass andI delivered by the gathering device to a blank or parison forming unit, such gathering and transfer of mold charges being effected without interrupting rotation of the article forming units.

Another object is the provision, in a machine of the above type, of means whereby blanks or parisons may be partially developed in the open air prior to their being enclosed in finishing molds for final expansion.

A further object is the provision, in a machine embodying the principles above set forth, of means whereby relative rotary movement between the finishing molds and finished articles therein may be obtained for the purposeof producing paste-ware.

It is also an object to provide a novel mechanism for controlling opening and closing of the finishing molds and tilting of the bottom plates. To this end, the bottom plate is in part supported upony a member which is adapted for movement a predetermined distance to open the finishing mold, and an additional distance to tilt the bottom plate and thereby discharge an article after the finishing mold has completely opened.

Other objects will be in part apparent and vin art pointed out hereinafter.

n the drawings: Fig. 1 is a central vertical sectional view through the machine, taken along the line I-I of Fig. 5, illustrating the manner of gathe mold charges and transferring them to e blank forming spindles. Fig. 2 is a central vertical sectional view taken along the hne II-II of Fig. 5, showi one of these spindles in its inve position and the blank attached thereto expmaed to as fm1 Simp@ in the emailing incid. l

forming machines andI Fig. 3 is a detail sectional elevation of one mold group, showing the spindle and charge gathering units and finishin mold.

. Fig. 4 is a sectional view ta en substantiall along the line IVe-IV of Fig. 3,showing t e intermittent drive for the gathering unit.

Fig. 5 is a fragmentary plan view of the machine.

Fig. 5A is a detail view showing the means for continuing application of vacuum to the gathering cups aften delivery of glass thereto.

Fi 6 is a detail sectional view taken substantially along the line VI-VI, Fig. 1, showing the means for intermittently rotatingrthe gathering unit.

ig. 7 is a fragmentary horizontal sectional view taken substantially along the line VII-VII of Fig. 1 and showing the spindles in various positions.

Fig. 8 is a sectional view taken substantiallyl along the line VIII- VIII of Fig. 1, s o

wing the automatic and manually controlled mechanism for raising and lowering the finishing molds.

Fi 9 is a sectional plan view taken substantially along the line IX-IX of Fig. 2, showing the gears for swinging and rotating the blank forming spindles.

Fig. 10 is adetail sectional elevation of one of the spindles showing the air passagewaiys therein.

ig. 10A is a fraginentar the positions of certain of t when the spindle is reinverted.

Fig; 11 is a detail sectional elevation showing t e lower end of a s indle cooperating with a finishing mold during final expansion of a blank.

Fig. 12 is a detail view similar Fig. 11, showing in dotted lines the position of the finishing mold and upper end of an ex anded blank 'ust after the Jaws of the spind e have opene and in full lines the next succeeding position of the finishing mold following openin of-said jaws and lowering of the mold.

ig. 13l is a sectional view taken substantially along the lines XIII-XIII of Figs. 10 and 12.

Fig. 14 is a view showing e air conduits detail sectional elevation show- 20 sist in pre1 lower mutilated ing the construction of one of the valves for controlling the supply of air to the spindles and finishing molds.

In more or less general'terms, the illustrated embodiment of our invention comprises an annular series of mold groups (Fig. 5) rotating continuously about a vertical axis and each up including a partible finishing mold aving associated therewith a blank forming s indle individual thereto. These spin les are arranged in a plane above the finishing molds and adapted to be alternately inverted and reinverted for the purpose of alternately transferring blanks or parisons to the finishing molds for transformation into finished articles of blown glassware and receiving mold charges from a gathering unit. During` inversion of the spindles, they are rotated about their axes to as iminary development of the blanks.

low pressure air is conducted to the interior of the blanks attached thereto to partiall develop them prior to being placed in the ishing molds. These spindles and finishing molds are rotated continuously and air is introduced into the blanks durin the blank developing process in order to o tain uniform distribution of glass in the finished articles.

The mold charges or measured quantities of molten glass are delivered to the blank forming spindles 20 at re lar time intervals by gathering cups 101 preferably suction cups) mounted on an intermittently rotating carrier 105 (Figs. 1, 3 and 5) at the upper end of the stationary column 21, about which the mold groups rotate. According charge gathering unit comprises two suction cups 101, each of which 1s first positioned be ow a bottom outlet opening in a feeder or furnace extension for gathering a mold charge and then over and in register with one of the spindles for transferring the mold charge to the latter. The arrangement of this gathering unit is such that while one cup is gatheri a measured quantity of glass from the supp y body in the feeder by way of the bottom outlet opening, the other cup is depositing a mold charge of glass upon one of the s indles 20, with which it registers for a s cient period of time to permit such deposit of the mold char e.

More specifically t e machine com rises an annular series of blank forming spindles 20 mounted for continuous rotary movement about the stationary central column 21, the latter' comprising inner and outer sleeves 22 and 23, res ctively, keyed together and rising. vertica 1y from a horizontally disposed base 24. Reenforcing webs or ribs 28 are formed on the external sleeve 23. Upper and ars and 26, respectively, are mounted on t e lower portion of the outer sleeve 28 and comprise part of mechanism to the f present embodiment of the invention, the be for alternately raising and lowering the finishing molds 153, as will be apparent hereinafter. A mutilated ring gear 27 (Fig. 1) arranged just below the gears 25 and 26 controls operation of mechanism for alternately opening and closing the finishing molds 153 in a manner to be described. Air and vacuum chambers 30 and 31 are provided in a circlilar drum 29 at the upper end of the outer sleeve 23. Air and vacuum supply pipes 32 and 33, respectively (Fig. 3), are connected to said chambers 30 and 31.

The blank forming spindles 20 (Figs. l, 2 and 3) are mounted on a spider 34 which is rotatively supported on the central column 21 above the drum 29 and rests upon the lat- This spider 34 is in part supported on a frame 35 rotatively mounted on the base 24, the frame being connected through posts 36 and radial arms 37 to said spider. Continuous rotary movement is imparted to the spider and spindles supported thereon by any suitable means, not shown, operating through a vertical shaft 38, pinion 39, and internal ring gear 40, the latter connected through radial arms 41 to the arms 37 on the spider 34. Incidentally, this drive provides for continuous rotation of the finishing molds 153 which are carried by tables mounted on the circular frame 35, as will be described hereinafter.

A pair of outer and inner circular chambers ap arent presently.

ach spindle 20 by which measured quan` titles of molten glass or mold charges are developed into blanks in the open air preparatory to final expansion in the finishing molds and then positioned so that the finishing molds may close about theblanks, comprises a sleeve 46 mounted for rotation in a bearing 47 the .latter suitably secured to the upper side of the rotary spider 34 and having its axis extending radially of the machine'. A circular head 48 at the outer end of the sleeve 46 is rigidly connected to a spindle housing 49 which is adapted to be inverted and reinverted in alternation by rotary movement thereof about the axis of and due to rotation 46. Rotary movement is imparted to the sleeve 46 at regular time intervals by means of a stationar mutilated ring ear 50 (Figs. 1, 3, 7 anflv 9) which periogically rotates a bevel pinion 51 secured to the inner end of the sleeve 46. is ring gear 50 is formed to invert the spindle in a step-by-step fashion during which low pressure air is injected into the mass or mold charge of molten glass carried thereby and transformed into a partially developed blank or parison.

Provision is made whereby during the inverting movement ofa spindle 20, the mold charge carried thereby is partially developed so that comparatively little effort is required to completely and uniformly expand the blank after it has been enclosed in a finishing mold 153. Such partial development of the blank being formed may involve either continuous or intermittent rotation of the blank about the axis of the spindle housing 49 and either continuous or intermittent application of low pressure air to the interior of the blank. Through this reliminary development of the blank, unlform distribution of glass throughout the structure of the article is assured. The above results are accomplished by arranging within and at one end of the housing 49 or shell, a rotary spindle 55 (Figs. 2 and 10), having at its outer end a circular head 56 adapted to cooperate with a pair of jaws 57 in attaching mold charges to the rotary spindle. These jaws 57 (Figs. 2, 10, 11 and 12) are arranged in pairs and connected through arms 58to hinge ins 59 carried by the spindle housing 49. oil springs 60* connected to the arms 58 normally tend to hold the jaws closed. For the urpose of opening these jaws 57 so that mo d charges mag be properly delivered to the spindles an later. for. the purpose of releasing the up r end of an expanded finished article in a nishing mold, there is provided mechanica-l means includin links 60 connectin the arms 58 to the forged portion 61 of atlever 62, the latter `fulcrumed upon a bracket v63 carried by the spindle houslng 49 and adapted to be rocked periodically by contact with a stationary 'cam 64. This cam 64'opens the jaws when the spindle is in its inverted position supporting a blank-or parison in the tinishing -mold. A cam 65 (Fig. 3), spaced above the c am 64 and circumferentially from the latter, operates to hold the jaws 57 open while mold charges are-being deposited upon the spindle -by a gathering cup 1 01.

The rotary spindle 55 Figs. 1, 2, 3 and 10) within this housing 49 is rotated independentlyv of the jaws5 by mechanism including a pair of meshing bevel ears 66, one of which is fixed to the up r en of the rotary spindle 55, while the ot er is secured to the 'outer end of a shaft 67 extending radially inward through the sleeve 46 and carrying a bevel gear 68 at its inner end running in mesh with Aa mutilated ring g'ear 69. This ring gear 69 (Figs: 2 and `3) is aced radially inward romthe mutilated ring gear 50 which in- -verts the indle 20, both said gears 50 and 69 being fix to the lower sideof a stationary collar 70 which is nonrotatably mounted on the column 21 a short distance above the spider 34. This spindle rotating ring gear 69 is provided with a blank space 69'i so located that during the period in which the spindle 20 occupies an upright position and is swinging to a substantially horizontal, the rotary spindle 55 is held against rotation. Obviously, if it is found desirable, this ring gear 69 may be so formed that rotation of the spindle 55 begins immediately after a mold charge has been deposited thereon.

For the purpose of forming an initial blow opening or bubble in mold charges deposited on each spindle 20, a plunger 7l. (Figs. 2 and 10) is in part carried by the rotary spindle 55 relative to which said plunger is axially movable. 'lhis plunger 71 is normally disposed in a recess 72 or chamber in one end of the rotary spindle 55 and is carried by a plunger rod 73 extending axially through said spindle and through a guide 74 which is arranged within and closes the opposite end of the. spindle housing 49. Reciprocation of the plunger rod 7 3 for the purpose of alternately projecting and retracting the plunger 72 is obtained by a rocker arm 75 mounted on one end of the spindle housing 49, one end of the arm being connected through a link 76 to the adjacent end of the plunger rod, while its other end carries a cam roll 77 Which periodically engages a stationary cam 78 on the drum 29. Thus, at regular time intervals, the cam 78 rocks the arm 75 and causes projection of the blank in. opposition to a coll spring 79 (Figs. 2 and 10) which yieldingly holds said plunger in its retracted position.

Air under pressure for development of the blanks or parisons during inversion of the spindles 20 and for final expansion of the Ablanks in the finishingl molds 153 is supplied to the recess or chamber 72 in the lrotary spindle 55 through suitable conduits providing communication between said recess and the air chambers 42 and 30, as will be apparent presently.

Duringinversion of the spindles 20, air under low pressure is applied to the interior of the lmass ofmolten glass which is attached to one end of the rotary spindle 55 for the purpose of partially developing the blank or arison before it is finally enclosed in a finishmg mold 153 for final shaping. After thefinishing mold 153 closes about the partially developed blank or parison, air under hig pressure is introduced into the initial blow opening in the blank so the latter is expanded against the walls of the finishing mold and as- Ap- 1 plication of air under low pressurev intermitsumes the shape of the finished article.

tently or continuously during inversion of the' spindle 2O is obtained by a construction including a pipe 80 (Figs. 5, 7 and 14) which provides connection between the air chamber 42 (Figs'l and 2) and the passageway 83 lunger 71 into a Vzo (Figs. 7 and 10) extending lengthwise in the bearing 47. A cam controlled valve 84 (Figs. 2, 7 and 14) regulates the flow of air from the chamber 42 to the pasageway 83. Stationary cams 85 of any desired length and number periodically open the valve and allow air to flow into the passageway 83. A pressure reducing valve 86 (Fig. 7) in the pipe line 80 regulates the pnessure of the air flowing into said passageway 83. This valve 86 is made of any approved type. 'lhe low pressure air is conducted to the recess 72 in one end of the spindle 55 for application to the interior of the blank or parison by means of an arcuate channel 87 (Figs. 10 and 10-A) formed in the inner face of the rotary disc 48 or head, said channel being approximately l180 in length and providing communication, at regular time intervals, between the passageway 83 in the bearing 47 and the conduit 88 formed in and extending len hwise of the spindle housing 49. This con uit 88 is vat all times in communication with an annular pas-` sageway 89 which in turn opens through radial ports 90 into the aforementioned chamber or recess 72. While the spindle 20 is in position to receive a mold charge, a ort 91 at the upper end of the conduit 88 igs. 10 and 10-A) is in register with the outer end of the passageway 83, as shown in Fig. 10-A. At a predetermined point following initial downward swinging of the spindle, the valve 84 is opened, allowing air `under low'pressure to flow through the pasageway 83 and chan- .nel 87 to the port 91 an'd thence through the conduit 88 to the recess 172 and interior of the blank. The annular channel 87 is ofsuch length and so positioned that when the spindle is completely inverted, communication between the passageway 88 and said channel is broken (Fig. 10) and as a result flow of air into thev parison is shut 0H.

Air under high pressure is supplied to the conduit 88 for ultimate applicatibn to the blank while in finishing mold 153 by way of a pipe 92 (Figs. 2, 7 and 10) which provides communication between the aforementioned air chamber 42 and a chamber 93 which is arranged in the bearing 47 at a point diametrically opposite the low pressure passageway 83. A port 93'* in the chamber 93 registers with the port 91, when the spindle is inverted so that air under high pressure is supplied to the mold 153. This chamber 93 also accommodates a locking and centering device 94 which securesthe spindle in a true 'vertical position and in proper relation to the finishing mold 153 during the final blowing operation. This device is in form of a sleeve having a tapered outer end adapted to project into a bushing 95 provided at one end ofthe arcuate channel 87. A spring 96 yieldingly holds the device in operative position with its tapered end projecting into the bushing. The valve`97 (Fig. l2) is constructed substantially as is the valve 84 shown in Fig. 14 and is arranged in the pipe line 92 toreg'ulate the flow of air under pressure through said pipe to the finishing molds. A cam 98 (Figs. 2 and 7) opens the valve 97 at regular time intervals, allowingair under high pressure to enter the upper end of the finishing mold for final expansion of the blank or parison therein.

Means forV gathering mold charges from a supply body of molten glass and delivering them to the spindles 20 (Figs. 1, 2 and 5) comprises, according to the present disclosure, a pair of invertible suction gathering cups 101 mounted upon the upper end of a central column 21 for rotation in a closed horizontal path. These cups are spaced-apart horizontally and are so moved that while one cup occupies a charging position beneath a bottom outlet opening 102 in the container 103 for molten glass, the other cup occupies an inverted charge delivering position over and in register with one of the spindles 20. The cup beneath the outlet gathers a mold charge of molten glass while the other cup is releasing the previously gathered charge for delivery by gravity to one of the spindles. These cups 101 are rotated intermittently and alternately inverted and reinverted by mechanism to' be now described. A- stationary vtable 104 (Figs. 1, 2 and 3) on the upper end of the central column 21 is suitably secured to both said column and the` stationary collar which carries the rack bars 50 and 69. The gathering cup carrier-'105 is rotatably mounted on thetable 104 and includes a vertical shaft 105a (Fig. 2) journalled in a bearing 106 formed on said table and spaced horizontally from thel central column 21. Rotary motion is imparted to the cup carrier 105 through mechanism operated directly by rotation of the `spindles 20 about `the central column 21. The bearings 47 which support the spindles, carry an internal ring gear 107 (Figs. 2 and 5) which runs in mesh with a pinion 108 at one end of the table 104, said pinion in turn meshing with a constantly rotating external ring gear 109 which encircles the hub portion 110 on the lower side of said table. Attached to the lower side of the external ring gear 109 (Figs. 1, 2 and 5) and encircling the hub 110 is a mutilatedy gear 111 which, at regular time intervals, runs in mesh with a pinion 112 carried by an extension 113 on the lower end Vof the shaft' gathers a mold charge and transfers itto aspindle 20 durin a single revolution of the cup carrier.v is previously stated, the gathering cups 101 are rotated internat upper ends of the blank forming spind tently about the axis of the shaft During the intervals between rotation of the cups, the latter are positively held against movement due to contact between one of a pair of reentrant portions 114 on a collar 114 and the outer faces of segments 115 (Figs. 2 and G) which are arranged below the mutilated gear 111 and between the toothed areas of said gear. Thus, during the intervals between otary movement of the cups 101, the are securely held in positions to gather mo d charges of molten glass and accurately drop them upon the v adjacent es 20.

In order that the gathering cups 101 may open upwardly at the charge athering position and open downwardly wen in position over a spindle 20, provision is made tov alteriiately invert and reinvert the cups while rotilting about the axis of the vertical shaft 105a with the carrier 105. This is accomplished by providing a chamber 116 (Figs. 1 and 3) at the upper end of the shaft 105", the wall of said chamber having ,formed therewith a pair of diametrically opposed trunnions 117 upon which cup carr ing sleeves 118 are journalled. A shaft 119 (lfig 3) extends through each ltrunnion 117 and sleeve 118 and by means of a spring pressed detent 120 carried by the sleeve, is separably connected to the latter. Intermittent rotation ofthese sleeves118 and incidentally the gathering cups 101vearried thereby, isob tained by mechanism includin a stationary mutilated bevel gear 121 in sai chamber 116 between'the adjacent inner ends of the shafts 119 and bevel pinions 122 on the inner ends of said shafts in such position that during rotation of the cup carrier 105, these pinions periodically mesh with the teeth of they mutilated bevel gear 121 and thereby alternately invert and reinvert said-cups., The

stationary bevel gear 121 is secured to the upper end of] a rod `123 extending axially through-the 4shaft 105 and extension 113 on the latter, said rod having itslower end anchored in the stationary collar-70 which carries the ring gears 50 and 69.

Each char e gathering cup -101 includes a circular b y' portion 124 (Fig. 3) havin a chamber 125 opening through one end an adapted to accommodate a major portion of a mold charge. A pair of cooperating jaws 126 (Figs. 3 and 5) are pivoted to a vertical hinge pin 127 on the body portion 124 and have semi-circular extensions 128 thereon which cooperate with eachother in forming the blanks or parisons are properly supported durin inversion, as well as final expansion, in tie finishing molds. The jaws 126 (Figs. 2 and 5) are normally and yieldingly held closed by mechanism including coil springs l130 carried by a pair of rods4 131 which extend through guides 132 on o posite sides of the gathering cup, said r s having one end connected through links 133 to arms 134 carried by the jaws, while the other ends of said rods are connected by a cross-bar 135 which carries a cam roll 136.l A stationary cam 137 (Fig. 3) is mounted on a bracket 137 at the mold charge transfer position and is adapted to engage the cam rolls 136 one at a time when the gathering cups are inverted and in register with the spindles.

Delivery of mold charges to the cu s while the latter are in register with the out et opening 102 inthe feeder or glass container 103 may be obtained either by a gravity flow of glass through said outlet into the chamber 125, or by bringing the mouth 128 into sealing contact with molten glass in said itlet and exhausting air from the chamber 125 whereby suction operates to quickly fill the chamber with molten glass. In either event, a cutofl` knife 138 is employed to sever excess glass from the mold charge delivered to the gathering cups. According to the resent disclosure, suction is employed in fillin the cups with molten glass. This is accomplished by exhausting air from the chambers 125 through vacuum slots 139 (Fig. 3) which communicate with axial openings 140 in the shafts 119, said openings in turn leading through radial por-ts or slots 141 to annu lar chambers 142 formed in the trunnions 117. This pair of annular chambers 142 communicateone at a time through ports 143 with an arcuate chamber 143 (Figs. 1 and 5- A) and thence with a chamber 144 in the table 104. A pipe 145 provides communication between the arcuate chamber 143* and the chamber 146, the latter formed in the stationary collar 147 which has bearing coli)- tact with the uiper side of the spider 34. This latter chamber 146 is in constant coinmunication with the vacuum chamber 43V by way7 of .suitable ports 148.

pplication of vacuum to the gathering cups is controlled and regulated b the arcuate passageway 143l Iin the .table 104, such arcuate form providing for communication between the passageway and one of the orts 143 from the time the cup re ters wit the bottom outlet opening unti before it reaches the transfer position over and in register with one of the spindles. At the latter point, the port 143 moves out of re ister with the arcuate assageway 143 and t iereby shuts oif app ication of vacuum to the chamber 125.

Movement of the gathering cup into register with a spindle also causes register of one of the orts 143 with a vacuum release port 143b adjacent the arcuate passageway 143. Thus, the vacuum is broken and the mold charge allowed to drop onto the spindle.

Each finishing mold unit includes a horizontally disposed mold table 150 fixed to the upper end of a shaft 151 which is journalled in a vertical bearing 152 rising from the circular frame 35. A key 152n prevents relative rotary movement of the shaft 151 and bearing 152. A partible finishing mold 153 is mounted on a horizontal support 154 spaced above and carried by said table 150, the mold sections being plvoted to a. vertical hinge pin 155 on the support through arms 156. Opening and closing of the finishing mold is effected through a cam mechanism including an inlern'iittently rotated cam 157 mounted on the upper end of a vertical shaft 158 extending downwardly through the sleeve 151, said cam operating periodically through a cam roll 159 to move a slide 160 which is connected through arms 161 to the mold arms 156. This slide 160 is mounted in a horizontal slideway 162 in the support 154, and, in addition to controlling opening and closing of the finishing mold, regulates tilting of the bottom plate 163 which is pivoted to a horizontal hinge pin 164 and carries a cam roll 165 which rides over the upper faceI of said slide. Movey ment of the slide 160 a predetermined distance in one direction opens the finishing mold, leaving a finished article in an u right position on the bottom plate. Additional movement of the slide in the .same direction to the position shown in Fig. -1 allows the bottom plate to tilt about the hinge pin 164 in a fashion to discharge a finished article into a chute 166.

The shaft 158 (Figs. 1 and 8) which imparts rotary movement to the cam 157 for opening and closing the finishing mold and raising and lowering the bottom plate 163 is itself rotated periodically by means including a pinion 167 which is adapted to engage a rack bar section 168 just prior to arrival of a mold at the articledischarging station (Fig. 1) to open the mold, and later to engage a rack bar section 169 which operates to again close 'the finishing mold about a blank or parison which is to be expanded to final shape. These rack-bar sections 168 and 169 are arranged within the circular frame and suitably secured to therbase 24. During the in'- .tervals between rotation of the cam 157, the

pinion 167 is locked against rotary movement by means including a collar 170 formed integrally with said pinion and having reentrant portions 171 in its periphery adapted to slidingly contact with arcuate bars 172 which are positioned between therack bar sections 168 and 169. Thus, when lthe pinion 167 a reentrant portion of the collar` 170 comes into contact with one of the lock bars 172 and securely locks the pinion against rotation. The piniony and collar are secured to a sleeve 173 which in turn is splined to the lower end of the shaft 158 and suitabl supportedon a bracket 174, the latter carried by the circular frame 35 and rotating therewith. This mounting of the pinion and collar on the sleeve 173 is necessary in order that the finishing mold table may be alternately raised and lowered during each cycle of operations, as will be apparent presently.

As a finishing mold unit approaches the position. in which the mold closes about a parison suspended from one of the spindles 20, the entire unit (the table 150 and parts supported thereon) is raised vertically so that when the finishing mold sections are closed about the parison their upper ends snugly mold and discharge of the article, the upper end of the latter would strike one of the jaws 57 and be thereby broken or distorted in its ejection from the mold. This raisin and lowering of the emolds \(Figs. 1 and 8 is accomplished by aranging a hollow shaft 175 within the vsleeve 151 and around a portion of the shaft 158, said hollow shaft including al worm 176 which is threaded through a gear 177, the latter being rotatable to cause vertical movement of the hollow shaft and similar movement of the table 150 and mold supported thereon. This gear 177 is suitably supported incontact with the low er end of the bearing 152 and includes a bevel toothed portion 178 which runs in mesh with a bevel gear 179, the latter adapted to be oscillated at regular time intervals. This bevel gear 179 is mounted on one end of a shaft 180 extending radially of the machine and journalledin a bearing 181 on the circular frame 35, said shaft supporting at its inner end a bevel gear 182 which is alternately engaged by the vertically spaced mutilated gears 25 and 26 or rack bars referred to here tofore. These gears 25 and 26 are spaced apart vertically as well as circumferentially and in succession mesh alternately with upperand lower sides of the bevel gear 182, imparting'to the latter an oscillative move ment which is transmitted through the gearing just described to the worms 176, for the purpose of alternately raising and lowering the tables 150 and finishing molds 158.

When finishing molds 153 of di'erent heights are employed, it is of course necessary to effect a corresponding c ange in the elevation of the table 150 so tha proper cooperation between the molds and spindles 20 may be obtained. This is accomplished (Figs. 1 and 8) by providing a manually rotatable bevel gear 183 which is connected through a shaft 184 to a hand wheel 185, said gearing running in mesh with the bevel toothed portion 178 of the gear 177. By rotating the hand wheel 185, the gear 183 is correspondingly moved and serves to raise or lower the finishing mold table 150 to the desired elevation independently of the automatic elevating mechanism above described.

In operation, the spider 34 which is rigidly connected to the series of blank forming s inj dles 20 and finishing molds 153 is continuously rotated about the central column 21 so that said spindles and finishing molds are moved in succession past stations at which the blank forming spindle 20 receives a mold charge from a cup 101; the spindle inverts to place a blank or arison in the finishing mold 153; the blank 1s expanded in the finishing mold 153 to the final shape of the articles of glassware being produced; and finally the nishing mold o ened and bottom plate tilted to discharge a nished article. The ,charge gathering mechanism is operated intermittently so that while one gathering cup 101 (Fig. lis obtaining a mold charge from the supply ody of molten glass in the container 103, the other cup is opened over and in register with a spindle QOQpermitting a previously gathered mold charge to drop onto the spindle. The s indle to which a mold charge has just been elivered is then moved away from its position beneath on` of the gathering cups which is inverted about the axis of the sleeve 46, by means of mechanism including the gear 57 and mutilated ring gear 50, so that the blank may be swung from the position shown in Fig. 1 to that shown in Fig. 10,.

as previously described. During such inversion of the spindle, air under low pressure is applied internally of the blank for the purpose of obtaining uniform distribution of glass therein. The finishing mold 153 is raised a short distance just after the spindle inverts and closes about the parison, after which air under high pressure 1s admitted to the finishing mold by opening the valve 97. Lifting of the finishing mold, as previously pointed out, brings its u per end into contact with the blank holding jaws 57, while lowering of said mold after completion of the final blow and opening of the jaws 57 so positions the upper end of the blown article that it will clear the jaws and other elements when the bottom plate 163 is tilted at the discharge station.

As one spindle moves away from its position beneath one of the charge gathering cups 101, the next succeeding spindle is brought into position beneath the other charge (gathering cup 101, said cups having chan e places in the time interval between whic said next succeedin spindle has advanced to the charge receiving position. Delivery of mold charges of molten glass to these cups 101, as previously stated, may be obtained by a periodically accelerated gravity flow of glass through the outlet 102 or by suction,'involving bringing the cups into sealing contact with the glass in the outlet and then exhausting the air from the chambers 125. i

This machine is well adapted to the production of paste ware, in that provision is made whereb the expanded article may be rotated relative to the finishing mold and thereby obtain the surface finish desired. Such rotation of the expanded article is obtained by a continuation of the rotary movel ment of the spindle 55 after the blank has been enclosed in the mold. The formation of the mutilated ring gear 69 directly controls this rotar movement of the spindle and article. T e gear formed as shown in Fig. 9 provides for continuous rotation of the spindle even during expansion of the blank within the finishing mold. By removing a portion of the gear 69 at the proper point, rotation of the spindle may be interrupted while the article is being initially expanded to its final shape, after which rotation of the spindle and the finished karticle therewith may be resumed.

Modifications may be resorted to within the spirit and scope of the appended claims.

What we claim is:

1. In a glassware forming machine, an annular series of finishing molds rotatable about a vertical axis, means to impart continuous rotary movement to the molds, blank formi units individual to the finishing molds an rotatable therewith, means arranged above said units to deliver measured uantities of lass to the latter, said last mentioned means including a suction gathering cup and mechanism for rotating it bodily as a unit about a fixed vertical axis disposed between the molds and the said axis of rotation thereof. and thereby alternately placing the cup in charge gathering and charge transferring positions, means operating to intermittently 1mpart rotary movement to the cup, and means to cause delivery of measured 1quantities of glass to the cup.

2. In a glassware forming machine, an annular series of finishing molds rotatable about a vertical axis, means to impart continuous rotary movement to the' molds, blank forming units individual to the finishing molds and rotatable therewith, means arranged aliove said units to deliver measured quantities of glass to the latter, said last mentioned means comprising a carrier mounted-ina plane above the blank forming Sli the spindle,

units for rotationabout'a vertical axis disposed. between the molds and axis of rotation of the machine, suction gathering cups on said carrier, and means for imparting rotary movement tothe carrier at regular time intervals to thereby alternately place the cups in charge gathering and charge transfer positions, and means to deliver glass to the cups. f

3. In a glassware forming machine, the combination of an annular series of finishing molds, an annular series of invertible parison forming spindles arranged above the finishing molds and individual to the latter, means to constantly rotate said spindles and finishing molds about a common vertical axis, a charge gathering and transfer unit arranged in a plane above said spindles, said unit comprising a carrier rotatable about a vertical axis disposed between the finishin molds and axis of rotation thereof, a pair o invertible suction gathering cups mounted on said carrier, means for periodically rotating the carrier to cause one cup to assume a charge gathering position over the center of the machine while the other cup assumes a position over one of the spindles to transfer a mold charge to the latter, and means to invert the spindles one at a time to place parisons in the finishing molds for final shaping.

4. In a glassware forming machine, the combination of an annular series of finishin molds, an annular series of invertible parison formin spindles arranged above the finishing molds and individual to the latter, means to constantly rotate said spindles and finishing molds about a common vertical axis, a charge gathering unit arranged in a plane above the spindles for rotation about a vertical axis disposed between the finishing molds and axis of rotation thereof, and comprising a pair of suction gathering cups, means for moving the cups intermittently whereby they are alternately placed in mold charge gathering and charge transferring positlons, and means for inverting the spindles one at a time to place parisons on the finishing mold for final shaping.

5. In a glassware formin machine, a partible finishing mold, a spindle arranged 1n a plane above said mold, automatic means for alternately invertin and reinverting the spindle for transferring blanks to said mold and moving the spindle to a position to receive mold charges, means to partly develop a blank carried by the spindle during inversion of the latter, means for continuously rotating the spindle and mold about a common vertical axis, a charge gathering and delivering mechanism arranged in a plane above said mechanism including a pair of suction gathering cups rotatable about a vertical axis dis sed between the cups and between the mol s and axislof rotation thereof, means for intermittently imparting ro- `mold about a blank.

6. In a glassware forming machine, the combination of a stationary central column a partible finishing mold mounted upon and rotatable about said column, an invertible blank forming spindle arranged in a plane above the finishing mold, means to continuously rotate the mold and spindle about said central column, a mold charge gathering cup supported on the central column in a plane above the spindle, means operating at regular time intervals to rotate the cup about a vertical axis disposed between said column and spindle and thereby`move said cup between a charge gathering position and a position in which it may transfer mold charges to said blank forming spindle, means for transferring mold charges to the spindle,

and means for inverting the spindle.

7. In a glassware forming machine, the combination of a stationary central column, a partible finishing mold mounted upon and rotatable about said column, an invertible blank forming spindle arranged in a plane above the finishing mold, means to continuously rotate the mold and spindle about said central column, a mold char e'gathering cup supported on the central coglumn in a plane above the spindle, means operating at regular time intervals to rotate the cu about a vertical axis disposed between said column and spindle and thereby move said cup between a charge gathering position and a position in which 1t may transfer mold char es to said blank forming spindle, means or transferring mold charges to the spindle, means for inverting the spindle, and means to invert the gathering cup during movement thereof between said positions.

8. 'In a glassware forming machine, the combination of an annular series of finishing molds rotatable about a vertical axis, means to impart continuous rotary movement to the molds, blank forming spindles arranged in a plane above and rotatable with the finishing molds, means to rotate the spindles about a horizontal axis extending radially of the machine to thereby alternately position them to receive mold charges and transfer blanks to the finishing molds, means to transform mold charges into partially developed blanks during rotary movement of the spindles, means arranged in a plane above the spindles to deliver mold charges to the latter, said means comprising a pair of partible cups, and means to move the cups at regular time intervals about a vertical axis disposed between the molds and axis of rotation thereof to place one cup in a charge gathering position while the other cup is in position to deliver a mold charge to a spindle.

9. The combination of a mold carriage, a mold thereon, means for rot ,'ng the carriage, a receiver for a mold c a ge movable into a charge receiving position at the axis of said rotation, means for introducing a charge .of lass by suction into said receiver while in sai position, and means for transferring the charge to the mold, said receiver mounted independently of the mold carriage for movement from said receiving position to a. discharging position.

10. The combination of a mold carriage rotatable about a vertical axis, molds thereon, means for delivering charges of glass at said axis, a transfer device comprising a receiver movable intoA position to receive the charges at said axis, means for actuating said transfer device and' causing the receiver to deliver the charges to said molds in succession, and means for periodically applying suction to the receiver to hold the charges therein.

11. In a machine for forming glass articles, the combination of a mold carriage rotatable about a vertical axis, molds thereon, means for delivering charges of glass at said axis, means for transferring the charges of glass to the molds including a carrier mounted independently of the mold carriage, means on said carrier to hold the charges of glass, and mechanism for moving said carrier in synchronism with the rotation of the mold carriage and thereby moving said holding means from a chargerec'eiving position at said axis to a charge delivering osition.

12. The combinatibln of a mo d carriage rotatable about a vertical axis, molds thereon, a carrier mounted for rotation abouta sta.- tionary vertical axis spaced laterally from the axis ofthe mold carriage and dis osed within the path of travel of the'mo ds. a transfer cup on'said carrier, and means for rotating the carrierabout its axis in synchronism with the rotation of the mold carriage and'thereby moving the transfer cup from a -charge receiving position laterally of the molds to a discharging position over the molds.

13. The combination of a.. mold carriage rotatable about la vertical axis, molds thereon, a carrier mounted for rotation about a stationary vertical axis spaced laterally from the axis of the mold carriage and disposed within the path of travel of the molds, transfer cups mountedon said carrier at opposite sides of its axis, means for rotating said carrier in timed relation to the movements of the mold carriage and thereby bringing each said'cup alternately from a charge receiv-l ing sltion to a. discharging position over a l mol and means for inverting and reverting each said cup during its movement to and from discharging positlon.

14. In a lassware forming machine, an

.annular series of finishing molds rotatable a Ami about a vertical axis, means to impart continuous rota movement to the molds, blank forming units individual to the finishing molds and rotatable therewith, means arranged above said units to deliver measured quantities of glass to the latter, said last mentioned means including a suction gathering cup rotatable about a vertical axisdisposed between the molds and axis of rotation thereof to alternately place the cup in charge gathering and charge transferring positions, means operating to intermittently impart rotary movement to the cup, and suction means operable at regular time intervals to cause delivery of measured quantities of glassV to the cup.

15. In a glassware forming machine, an annular series of finishing molds rotatable about a vertical axis, means to impart continuous rotary movement to the molds, blank forming units individual to the finishing molds and rotatabley therewith, means arranged above said units to'deliver measured quantities of glass to the latter, said last named means including a suction gathering cup rotatable about vertical and horizontal axes to alternately place the cup in a charge gathering position over said vertical axis and in a charge transferring position over the blank forming units, means operating to intermittently impart rotary movement to the cup, and meansto cause delivery of measured quantities of glass to said cup.

16. The combination of a carriage rotatable about a vertical axis, an annular series of blank holding devices thereon and rotatable therewith, a carrier, a receiving cup thereon, means for actuating the carrier and thereby periodically moving said cup from aV charge receiving position at lsaid axis to a dischar positionbver the path of said holding dvioe's, means for introducing charges of glass to said cup while in said charge .receiving position, the movements of said cu being tlmed to bring it over the blank hol 'ng devices in succession at said dischar g position, and means operable while tgt cup is in said dischargin position to discharge the charges of glass rom said cup and transfer them to the said holding devices in succession.

17. The combination of a' carriage rotatable about a vertical axis, an annuliar series of` blank holding devices thereon and rotatable therewith, a carrier, a receiving cup thereon, means for actuating the carrier and thereby periodically moving said cup from a charge receiving position at said axis to a discharging position over the path of said holdy charges of glass to said cup while in said charge receiving position, means for periodically applying suction to the cup for holding the charges therein, the movements of said cup being timed to bring it over the blank holding devices in succession at said discharging position, and means operable while the cup is in said discharging osition t0 discharge the charges of glass rom said cup and transfer them to the said holding devices in succession.

LEONARD DKSOUBIER. JESSE H. TREECE. 

